Improvement in baster-guide for sewing-machines



J. T. JONES.

. ing-Machine Guide. 7

No. I Patented Aug. 10, 1869;

was es patent tat.

JOHN THOMAS JONES, on NEW YORK, N. Y., ASSIGNOR TO THE SINGER{MANUFACTURING COMPANY, OF. SAME PLACE. I

Lam mam No.93,540, dated Augast m, 1869.

The Schedule referred to in these Letters Patent and making part of thesame.

To all whom it may concern.-

Be it known that I, J can THOMAS J onus, of the city, county, and Stateof New York, have madean invention of a new and useful Easter-Guide forSewing-Machines; and that the following is a full, clear, and vexactdescription vand specification of my said invention.

- The feeding-apparatus of sewing-machines now in general use acts upona short portion of the cloth at a time; hence it is customary for-theoperator to use his hand continually, to arrange the cloth in the properposition to be acted upon by the feeding-apparatus, and the constantattention of both the eye and the hand is required for this purpose.

- The object of my invention is to relieve the eye and hand of theoperator of this incessant attention and application, and totherebyfacilitate working with the machine. To thisend,

' My invention consists of whatI term abaster-guide' forsewing-machines, which. consists substantially of a set oftravellingpoints, for perforatingthe cloth at intervals, and guiding itto the place where it is delivered to the feeding-apparatus of asewing-machine, and of a holding-plate,or its equivalent, for holdingthe cloth in engagement with the points while they are in position toact upon the cloth.

'My invention consists, further, of the combina ion of the saidtravelling set of points and holding-plate, with a gauge to determinethe position of the cloth relatively to the points at the end of theimplement at which the cloth enters it, or thereabout.

I My invention consists, further, of the combination of the saidtravelling set of points] and holding-plate with a gauge'at thedelivery-end of the implement, or thereabont, to guide the cloth .asitleaves the implement.

My invention consists, further, of the combination of the travelling setof points and the holding plate' through the intervention of a pivot orhinge, in such manner that 'the set of travelling points andholdingplate may be separated, to .permit the cloth to be introducedreadily between the two. I

In order that my invention may be fully understood, I have represented,in the accompanying drawings, a baster-guide embodying it- Figure 1representing a plan of the implement Figure 2 representing a plan of itwith certain parts removed;

Figure 3 representing'a side view of the implement;

Figure 4 representing a transverse section" of the sameat the line a: a;of fig. 3; and

Figure 5 representing an end view of merit.

lnconstructing my implement, I prefer to secure the points a a a to anendless band,b, so that theythe implemay travel in engagement with thecloth at one side of the band, and return on the opposite side .of theband to the place where the cloth enters the imple:

ment.

This band-b is constructed to travel upon two pulleys, O O, which arefitted to turnupon arbors, d and are provided with flanges, 'r, to holdthe band in its position. I

One of these a-rbors, d, is secured to a bracket, E, projecting from theholding-plate F, which forms the stock of the implement, while the otherarbor, d, is connected with a. frame, G, which is constructed to swingupon the arbor, d, which operates as a hinge- 1 pivot, so that thetravelling set of points a a a may be separated from the holding-plateby turning the swinging frame G upward upon the arbor d.

The arbor d is connected with the swinging frame G by a"slottedslide,'h, so that said arbor may be moved, to tighten the band I), and may thenbe secured by the clamp-screw i, which fastens the slide to, theswing-frame.

. The points a a a, while travelling in the direction in whichthc clothmoves, are caused to'move in a t-rack tliat is parallel with the surfaceof the holdingplate F, by means of a track-plate, m, which. is socuredto the swinging frame. G; and in practice, I; find it expedient to raiseone end of this track, as indicated by'the dotted lines n in fig. 3, soas to facilitate the withdrawal of the points from the cloth, as thelatter passes to the needle.

The holding-plate Fis slotted, as at e e, topermit the travelling pointsto pass through the cloth lying upon the holding-plate and the distancefrom the face of the holding-plate to the adjacent face of the band 11is less than the length of the points, so that each point-is compelledto perforate the cloth and project slightly into the said slot. v n

fitted at one end with a slid- This holding-plate lS 'ing gauge, J,which determines the position of the edge of the cloth at its entrancein the implement, and it' is fitted at vvthe delivery-endof theimplement with a second gauge, K, to determine the position of the edgeof the cloth as it leaves'the implement.

The stocks or shanks of both gauges areslo'tted, to permit them to besecured to the implement by clamp-screws, Z l, in such manner that theymay be' adjusted. r

The clamp-screw l of one of the gauges J, is screwed into a bracket, N,which projects npward from the holding-plate F; and this bracket isnotched, as at s, to admit the adjacent end of the swinging frame G,

and thus holds that frame in place when it-is in its normalposition. v

The outer end of the slide hoverlaps the bracket N, and forms a handle,by which the swinging frame can be conveniently turned up and down, andthe lower edge of this handle, bearing upon the top of the bracket N,when the swinging frame is in its normal position, holds the frame andthe travelling points in their proper positions relatively to the faceof the holding-plate G.

The holding-plate F is perforated with a hole, t, to permit theinsertion of a screw by which the implement is secured to the bed-plateot'a sewing-machine.

The implement is screwed fast to the bed-frame of a sewinganachine, justin advance'of the feeding-apparatus, so that the material can pass fromit directly to the feeding-apparatus; the centre of the slot 0 2 beingin line with the needle, or thereabont, so that the travelling points aa 'a travel in the line of the intended seam.

The gauges are set as far from the points as the seam is to be from theedge of the cloth, the swinging frame is turned upward, the cloth isentered with its end in the fla-ding-apparatus and its edge in contactwith the gauges, and the swinging frame is turned down, so as to enterthe point or points which are at the under side of the band, into thecloth.

\Vhen, then, the sewing-machine is put in operation, thefeeding-apparatus will draw the cloth forward and cause it to passthrough the basteruide; and as the points are engaged in the cloth, themovement of the latter will cause the points to travel, the band b totraverse the pulleys, and each point in succession, as it travels roundthe pulley O, to perforate and engage itself with the cloth, while, aseach point travels round the pulley C, it will withdraw from andliberate the cloth.

Vhen a point is once engaged with the cloth, the latter cannot escape,because the holding-plate holds the cloth nearer to the face of the bandthan the length of the point. Hence, the cloth is guided by the point tothe delivery-end of the implement in the same position iii which it isengaged with the point; :md when the cloth is so engaged, no furtherattention is required for the portion of cloth extending between the.point engaged and the feed-apparatus of the machine. Therefore, theoperator need only be careful to place his cloth properly at the time apoint is about engaging with it; and as the points are, in this example,about four inches apart, the careful attention of the eye and hand ofthe operator is required only at intervals corresponding with the timerequired to sew a seam of four inches in length, instead of incessantly,as in ordinary machines.

My invention need not be embodied in the form of implement representedin the drawing, as it may be embodied in other forms.

Thus, for example, the holding-plate may be arranged above the pointsinstead of beneath them, -in which case the band, pulley, and theirappurtenances may be received in a recess formed in the bed-plate of thesewing-machine.

The points also may be connected with some other instrumentality than aband, to cause them to move to a'ud fi-o.

I am aware that an endless series of travelling points has been used tofeed the cloth in sewingmachines, but in such cases the points were setat short intervals in .a band, and no means were provided of holding thecloth engaged with the points from the period of their engagement to theplace where the cloth was disengaged from them, the cloth merely lyingupon the band carrying the points by reason of its weight.

I do not, therefore, claim to have been the first inventor of a seriesof points for feeding or holding cloth in a sewing-machine; but

What I claim as my invention, and desire to secure by Letters Patent,is-

The bastcr-guide hereinbefore described, consisting substantially of thecombination of a set of travelling points with a holding-plate tomaintain the engagc -ment of the cloth with the points, substantially asbefore set forth.

Also, the combination of the said set of travelling points andholding-plate with a gauge, to determine the position of the cloth as itenters the implement, substantially as before set fortln Also, thecombination of the said set of travelling points and holding-plate witha gauge, to determine the position of the cloth as it leaves theimplement, substantially as before set forth.

Also, the combination of the said set of travelling points toholding-plate, and the swinging frame, substantially as before setforth.

In testimony whereof, I have hereunto set my hand, this 8th day ofJune,A. D. 1869.

J. T.-JON

Witnesses Y W. L. BnNnnM, J orrx Rmneosn, Jr.

